usage: a genre of popular music originating in the 1950s; a blend of black rhythm-and-blues with white country-and-western; "rock is a generic term for the range of styles that evolved out of rock'n'roll."

7. rock, careen, sway, tilt, lurch, pitch, pitching

usage: pitching dangerously to one side

Verb

1. rock, sway, shake, move back and forth

usage: move back and forth or sideways; "the ship was rocking"; "the tall building swayed"; "She rocked back and forth on her feet"

2. rock, sway, move, displace

usage: cause to move back and forth; "rock the cradle"; "rock the baby"; "the wind swayed the trees gently"